mirror of
https://github.com/qurator-spk/eynollah.git
synced 2025-06-09 12:19:54 +02:00
allow passing PIL image to Eynollah w/o disk I/O
This commit is contained in:
parent
ba561ec833
commit
4897cefdb7
6 changed files with 53 additions and 48 deletions
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@ -65,7 +65,7 @@ from .utils import (
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order_of_regions,
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find_number_of_columns_in_document,
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return_boxes_of_images_by_order_of_reading_new)
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from .utils.pil_cv2 import check_dpi
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from .utils.pil_cv2 import check_dpi, pil2cv
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from .utils.xml import order_and_id_of_texts
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from .plot import EynollahPlotter
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from .writer import EynollahXmlWriter
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@ -79,8 +79,9 @@ KERNEL = np.ones((5, 5), np.uint8)
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class Eynollah:
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def __init__(
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self,
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image_filename,
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dir_models,
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image_filename,
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image_pil=None,
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image_filename_stem=None,
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dir_out=None,
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dir_of_cropped_images=None,
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@ -97,24 +98,24 @@ class Eynollah:
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logger=None,
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pcgts=None,
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):
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if image_pil:
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self._imgs = self._cache_images(image_pil=image_pil)
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else:
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self._imgs = self._cache_images(image_filename=image_filename)
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self.image_filename = image_filename
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self.dir_out = dir_out
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self.image_filename_stem = image_filename_stem
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self.allow_enhancement = allow_enhancement
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self.curved_line = curved_line
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self.full_layout = full_layout
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self.allow_scaling = allow_scaling
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self.headers_off = headers_off
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self.override_dpi = override_dpi
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if not self.image_filename_stem:
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self.image_filename_stem = Path(Path(image_filename).name).stem
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self.plotter = None if not enable_plotting else EynollahPlotter(
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dir_of_all=dir_of_all,
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dir_of_deskewed=dir_of_deskewed,
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dir_of_cropped_images=dir_of_cropped_images,
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dir_of_layout=dir_of_layout,
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image_filename=image_filename,
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image_filename_stem=self.image_filename_stem)
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image_filename_stem=Path(Path(image_filename).name).stem)
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self.writer = EynollahXmlWriter(
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dir_out=self.dir_out,
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image_filename=self.image_filename,
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@ -133,7 +134,16 @@ class Eynollah:
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self.model_region_dir_p_ens = dir_models + "/model_ensemble_s.h5"
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self.model_textline_dir = dir_models + "/model_textline_newspapers.h5"
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self._imgs = {}
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def _cache_images(self, image_filename=None, image_pil=None):
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ret = {}
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if image_filename:
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ret['img'] = cv2.imread(image_filename)
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else:
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ret['img'] = pil2cv(image_pil)
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ret['img_grayscale'] = cv2.cvtColor(ret['img'], cv2.COLOR_BGR2GRAY)
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for prefix in ('', '_grayscale'):
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ret[f'img{prefix}_uint8'] = ret[f'img{prefix}'].astype(np.uint8)
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return ret
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def imread(self, grayscale=False, uint8=True):
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key = 'img'
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@ -141,16 +151,9 @@ class Eynollah:
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key += '_grayscale'
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if uint8:
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key += '_uint8'
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if key not in self._imgs:
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if grayscale:
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img = cv2.imread(self.image_filename, cv2.IMREAD_GRAYSCALE)
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else:
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img = cv2.imread(self.image_filename)
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if uint8:
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img = img.astype(np.uint8)
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self._imgs[key] = img
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return self._imgs[key].copy()
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def predict_enhancement(self, img):
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self.logger.debug("enter predict_enhancement")
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model_enhancement, session_enhancement = self.start_new_session_and_model(self.model_dir_of_enhancement)
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@ -353,7 +356,7 @@ class Eynollah:
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self.logger.debug("enter resize_and_enhance_image_with_column_classifier")
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if self.override_dpi:
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return self.override_dpi
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dpi = check_dpi(self.image_filename)
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dpi = check_dpi(self.imread())
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self.logger.info("Detected %s DPI", dpi)
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img = self.imread()
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@ -1450,7 +1453,6 @@ class Eynollah:
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scale = 1
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if is_image_enhanced:
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if self.allow_enhancement:
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cv2.imwrite(os.path.join(self.dir_out, self.image_filename_stem) + ".tif", img_res)
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img_res = img_res.astype(np.uint8)
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self.get_image_and_scales(img_org, img_res, scale)
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else:
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@ -21,7 +21,6 @@ class EynollahPlotter():
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dir_of_deskewed,
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dir_of_layout,
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dir_of_cropped_images,
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image_filename,
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image_filename_stem,
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image_org=None,
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scale_x=1,
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@ -31,7 +30,6 @@ class EynollahPlotter():
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self.dir_of_layout = dir_of_layout
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self.dir_of_cropped_images = dir_of_cropped_images
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self.dir_of_deskewed = dir_of_deskewed
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self.image_filename = image_filename
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self.image_filename_stem = image_filename_stem
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# XXX TODO hacky these cannot be set at init time
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self.image_org = image_org
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@ -14,6 +14,7 @@ from ocrd_utils import (
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)
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from .eynollah import Eynollah
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from .utils.pil_cv2 import pil2cv
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OCRD_TOOL = loads(resource_string(__name__, 'ocrd-tool.json').decode('utf8'))
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@ -35,25 +36,24 @@ class EynollahProcessor(Processor):
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self.add_metadata(pcgts)
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page = pcgts.get_Page()
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page_image, _, _ = self.workspace.image_from_page(page, page_id, feature_filter='binarized')
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eynollah_kwargs = {
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'dir_models': self.resolve_resource(self.parameter['models']),
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'allow_enhancement': self.parameter['allow_enhancement'],
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'curved_line': self.parameter['curved_line'],
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'full_layout': self.parameter['full_layout'],
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'allow_scaling': self.parameter['allow_scaling'],
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'headers_off': self.parameter['headers_off'],
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'override_dpi': self.parameter['dpi'] if self.parameter['dpi'] > 0 else None,
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'logger': LOG,
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'pcgts': pcgts,
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'image_pil': page_image,
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'image_filename': None}
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Eynollah(**eynollah_kwargs).run()
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file_id = make_file_id(input_file, self.output_file_grp)
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with NamedTemporaryFile(buffering=0, suffix='.tif') as f:
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page_image.save(f.name)
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eynollah_kwargs = {
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'dir_models': self.resolve_resource(self.parameter['models']),
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'allow_enhancement': self.parameter['allow_enhancement'],
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'curved_line': self.parameter['curved_line'],
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'full_layout': self.parameter['full_layout'],
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'allow_scaling': self.parameter['allow_scaling'],
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'headers_off': self.parameter['headers_off'],
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'override_dpi': self.parameter['dpi'] if self.parameter['dpi'] > 0 else None,
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'logger': LOG,
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'pcgts': pcgts,
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'image_filename': f.name}
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Eynollah(**eynollah_kwargs).run()
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self.workspace.add_file(
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ID=file_id,
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file_grp=self.output_file_grp,
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pageId=page_id,
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mimetype=MIMETYPE_PAGE,
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local_filename=join(self.output_file_grp, file_id) + '.xml',
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content=to_xml(pcgts))
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self.workspace.add_file(
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ID=file_id,
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file_grp=self.output_file_grp,
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pageId=page_id,
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mimetype=MIMETYPE_PAGE,
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local_filename=join(self.output_file_grp, file_id) + '.xml',
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content=to_xml(pcgts))
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@ -6,7 +6,7 @@ from cv2 import COLOR_GRAY2BGR, COLOR_RGB2BGR, cvtColor, imread
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# from sbb_binarization
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def cv2pil(img):
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return Image.fromarray(img.astype('uint8'))
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return Image.fromarray(img)
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def pil2cv(img):
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# from ocrd/workspace.py
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pil_as_np_array = np.array(img).astype('uint8') if img.mode == '1' else np.array(img)
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return cvtColor(pil_as_np_array, color_conversion)
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def check_dpi(image_filename):
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def check_dpi(img):
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try:
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exif = OcrdExif(Image.open(image_filename))
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exif = OcrdExif(cv2pil(img))
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resolution = exif.resolution
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if resolution == 1:
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raise Exception()
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if exif.resolutionUnit == 'cm':
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resolution /= 2.54
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return int(resolution)
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except:
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except Exception as e:
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print(e)
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return 230
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@ -28,7 +28,6 @@ class EynollahXmlWriter():
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self.counter = EynollahIdCounter()
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self.dir_out = dir_out
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self.image_filename = image_filename
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self.image_filename_stem = Path(Path(image_filename).name).stem
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self.curved_line = curved_line
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self.pcgts = pcgts
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self.scale_x = None # XXX set outside __init__
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@ -36,6 +35,10 @@ class EynollahXmlWriter():
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self.height_org = None # XXX set outside __init__
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self.width_org = None # XXX set outside __init__
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@property
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def image_filename_stem(self):
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return Path(Path(self.image_filename).name).stem
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def calculate_page_coords(self, cont_page):
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self.logger.debug('enter calculate_page_coords')
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points_page_print = ""
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